53
Mounting and Operating Instructions CEAG Battery Cabinets
40071860035 (N) March 2016 www.ceag.de
6 Installation
6.3 Preparations
Check each cell/ monobloc separately by measuring the
open circuit voltage.
2 Volt cell:
U 2.11 V
6 Volt monobloc: U 6.33 V
12 Volt monobloc: U 12.66 V
• When measuring the open circuit voltage pay attention
to polarity (perhaps wrong mounting)
• If CEAG Notlichtsysteme GmbH has supplied drawings
for the installations, the cells / monoblocs should be
installed accordingly.
• Check that the battery racks are stable and horizontal.
For the shelf assemblies from 4 levels and 2 rows or 5
levels and 3 rows, the assembly should be anchored with
the building.
• The racks or cabinets should provide adequate ventilation
above and below to allow the heat produced by the bat-
teries and their charging system to escape. The distance
between cells or monoblocs shall be approx. 10 mm, at
least 5 mm.
6.4 Mounting
For mounting use insulated tools. It is recommended to
protect yourself by wearing rubber gloves, protection glasses
and clothes (incl. safety boots). Remove any metal objects
such as watches or any other items of jewelry, especially
in the case of installation in a cabinet (see also chapter 2).
Mount the supplied terminal covers to the battery connectors
for isolating the battery terminals.
The connections should be tightened by means of an insu-
lated torque wrench, set to the following:
• G-M5 terminal: 5 ± 1 Nm
• M6 male screw terminal: 6 ± 1 Nm
• M6 female screw terminal: 11 ± 1 Nm
• M8 male screw terminal: 8 ± 1 Nm
• M8 female screw terminal: 20 ± 1 Nm
• M12 male screw terminal: 25 ± 1 Nm
• Inch 10-32x0.425: 6 ± 1 Nm
After installation work is completed, lightly coat the connec-
tion surfaces with the terminal grease supplied.
This prevents corrosion but is not mandatory.
Check total battery voltage, which should correspond to the
number of monoblocs connected in series. The open circuit
voltage of single cells should not vary from each other by
more than 0.02 V among each other. For monobloc – batteries
the following maximum differences are allowed:
• 6 V - monobloc: 0.04 V
• 12 V - monobloc: 0.05 V
Install the provided terminal covers to insulate the battery
poles.
6.5 Parallel Arrangements
Preconditions and features for 2 to 10 strings in parallel:
• The connector cables for positive and negative terminals
of each battery string must have the same length.
• The minimum cable size for the end connectors of a string
is 25 mm/100 Ah string capacity.
• The end-connector cables must be placed on a copper
bar with at least 100 mm/100 Ah string capacity with the
shortest possible distance.
• It is a must to have a circuit breaker for each string or
every two strings.
• The strings must all have the same number of cells and
temperature.
If these requirements are fulfilled paralleling of up to 10
strings is possible. All battery performance data have to be
applied to the end terminal of each string.
Also, the type of lead-acid batteries may differ as long as
the requested charging voltage (Vpc) per string is fulfilled.
First every single string has to be pre assembled. Then check,
if strings have the same state of charge, and therefore a si-
milar open circuit voltage, before connecting them in parallel.
6.6 Operation Positions for AGM Cells and Mono-
blocs
The following figures show the possible operation positions
for valve regulated lead acid AGM cells and monoblocs in
conservation-charging operation.
fig. 3: operation positions for AGM monoblocs
OK
not OK
